Pen-clamp for ruling-machines



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H. E. LINDBLADH.

PEN CLAMP FOR RULING MACHINES.

, APPLICATION FILED OCT.2I,-I9I8.

1,392,423. Patented Oct. 4,1921.

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Toall whom it may concern:

BLADH, a citizen of thejUnited' ing at Boston, in the county of Sufiolk and may also 'disarrange the pens.

' ened Stateof Massachusetts, have invented a new and useful Pen-Clamp for'Ruling-Maehines,

of which the following is a specificatlon. In ruling machines, the' r'uling'pens are ordinaril 7 held in place in their beam'be fixed to the beam anda movablejawsecured tothe companion Since .the'cloths' tween a c amping jaw jaw by" a-sGries of bolts.- delivering ink to the pens reston'the upper side of the beam and extend over the clamp, the thumb-nuts by which the jaws are tight to :grasp the pens under side of 'the'clampiwBecause of this, when the operator desires to position the pens in setting-them to rule a form, the beam must be turned upon its supports until;

be loosened and tightened to enable the pens to be shifted'and held in their new positions. But with the beam thus raised,-if the bolts are sufiiciently loose to adjusted, those which have been been brought to the prop'erp'o'sition a refliable to become'displaced. "The movementofzthe beam'inci-- dent to the final tightening of the clamp By the present invention I provide ineans for actuating the clamp in'its'normal or'horizontal posi-" tion with uniform pressure throughout its pen-engaging length,i and which effects the application of the entire clamping force 1 1 simultaneouslyby a singleoperating mem ber..- r.

1,The accompanyin drawing illustrates two of many forms w 10h my invention may. assume,;r*z

Figure-1 being a broken frontelevation of one embodiment of :the invention;

-Fig.1 2; an end elevation looking from the left in Fig. .1; z

Fig. 3, aitransverse section on "the line Y Fig. 4, a view, similar to of a modi-' 1 extremity fication of the inventionyand A .Flgan elevation oi t e e ms?! ti n tFiga are necessarily on the o th d-17 by: set-screws,

1 ran-01AM?ron-nunme-nacnmnsa Y PatentedHOct; 4; 1921. as uataamer0am 21, 1918, Serial No. 258,596; I

' There is shown m m drawing the an,

ward ortion of the'beani of a ruling ma chine aving'a' relatively fixed upper jaw 10'- recessed to receive a clamping plate 111,

which is secured to the upper wall of therecess by screws 12."

The movable j aw of the clamp'is furnished by an opposite or lowe'r' plate'13 guided'in its movement towardaiid fromthe'upper plate by pins 14 fixedin the beam and extending loosely through openings in the. 1313x9137 These j ws or clam ing plates are adapted to engage and hold{ ports 'or' rackets 18 which" may be dis beneath the clamp,

near each ex tributed at intervals there preferably being one tremity of the seriesof pens. Each bracket has-an upwardly extending arm 19 fixed to the plate 11, as by rivetlng andpassing through slots 20 in theplate 113. The

brackets are flanged at 21 to furnish ways a 1 in which move actuating blocks22 secured inaanyother suitable manner. Each block has an inclined upper camfa'ce 23 contacting as shown, or

with an oppositelyinclined face upon the lowerextremltyof a projection 25 depending from the plate? if theblocks are moved by the travel of the rod axially beneath'the. projections, the lat;

ter and the plate13 will be-raised or low ered with relation to the companion plate 11', so the two latesmay be eithercaused to clamp the s anks of .the. pens between them or to release the one for their 'ad-- j-ustment or removal. 0 movement of the rod, at one extremity with a thread,-. shown 'at 26,1 this thread being engaged by a corre 's ondinglythreaded sleeve 27 held against 13. .It will be seen, tha't accomplish-this. I preferto provide it s iiiting longitudinally of the red by an annular flange 28 turning between arms 29, 29 at the bottom ofa bracket 30 fixed to the outer end of the sleeve is mounted a bevel pinion, 3g meshingwitha. s m lar pimon 33:

of the beam by screws 31. At the 3 fast upon the lower endof an operating venting the projections 25 shaft 34. Upon the thread 26 appear a nut and check nut 38 which may be set to limit the movement of the rod 17 to the left, as

viewed in Fig. l'of the drawings, these pre from riding off the ends of the cam surfaces 23. i

In using the device, the operator, with the beaminzits normal position, may turn the I shaft 34; by the finger piece until, through the gearing 32, 33 and the threaded engagement of the sleeve 27 androd 17, the blocks 22, are so positioned that their camifaces allow the plate 13 to be moved by gravity outof .contacttwith the companion plate 11, leaving a space between. the plates suflicient to admit the shanks of the then inserted between the enough to engage them frictionally, while still permitting them .to be further adjusted. They: may then be brought to their final positions and .firmly clamped, at which time the shaft 34 is fixed against rotation by the set screw 37. It-is to be observed, that since elements by which the clamping mechanism is operated are all beyond the'end of .the beam and clear of theink cloths. said beam may remain in its normal horizontal posi-' tion so there will be no force tending to disarrange the pens during their final position-f ing. Then, when the lower plate is'raised by the clamping mechanism to fix the pens, the force is applied evenly throughout the length of'the clamp and without any jar tending to disturb the arrangement.

Another form of my invention appears in Figsa4and 5- of the drawing. Here the clamping members are the same as in the first three figures, but instead of the rod 17 a shaft39 is employed mounted in bearings 40. depending from-the plate 11 and passin through slots in the plate 13. Distributed i along the shaft, theypreferablybeing closely adjacent to the bearings to prevent spring of'the shaft, are cams 41, here shown as spaced from one another by considerable intervals, though obviously they maybe elon- At one end of 42 extending upwardly beside the beam, opposite which is a screw 43 threadedthrough the arm. The operation of setting and'securing the pens is generally as already described, the movement of the arm and eccentrics to'the right', as viewed in Fig. "5, separating. the lower clamping plate from the upper to perpens; These are plates in subStan tially the properrelation for the particular mit the insertion of the pen shanks, while movement in the opposite direction clamps them, this position being maintained by bringing the screw 43 into contact with the. end of the beam. j I

Iclaim:

1; 'Apen-clamp for ruling machines comprising arelatively fixed jaw, an opposed movable jaw, supports extending from the "fixed jaw to oints outside the movable jaw, and an actuating member for, the movable 'j-aw mounted to move longitudinally'of the J ws up nthe supports at the exterior of the movable jaw.

2. A pen-clamp for ruling machines com-I. pris ng an upper jaw, a lower movable jaw provided with openings, supports ,depending from the upper jaw through the open ings and beneath the "lower jaw, means individual to the respectivesupports for attachingthem to such upper j aw, and-an ac-: tuating member. for the lower jaw mounted to move upon 1 the s pports longitudinally of the jaws., .5 3. A pen-clamp for ruling machines :comprising-an upper jaw,.a lower movable jaw having downward projections with inclined lower faces, supportsdepending from the upper jaw beneathlthe lower jaw, and a member; mounted to :move uponthe supports and having. inclined faces those of the lowerjaw. I.

4.7 A pen-clamp for ruling machineszcomprising an upper j aw,- a lower movable jaw having downward projections with inclined lower. faces, supports depending from r the upper jaw beneath the lower jaw, a member mounted to move upon the supports and hav ing-inolined faces coiiperating with those of the lower jaw, and means carried by the member for limiting its movement. A pen-clamp for ruling machinescomprising an upper jaw, a lower movable jaw, supports dependingfrom the upper jaw beneath the 1ower jaw,' a'nd an actuating member mounted to slide upon the supports,

I cooperating with I there being inclined cooperating-surfaces g prising relatively movable jaws, an actuatmg member mounted to 'travel along the jaws and being'provided with a threaded portion, a" rotatable nut engaging the thread to effect the travel of the actuating member, means for preventing the movement of the nut longitudinallyof the jaws and a shaft journaled upon a jaw and geared'to the nut.

.7. A pen-clamp forrruling machines"comprising relatively movable jaws, an' actuati-ng member mounted to travel along the jaws and being provided with a threaded per tion, a rotatable nut engaging the threadto effect the travel of. the actuating member, a rotatable shaft geared to the nut, and means or fixing said shaft against rotation, J

8. A pen-clamp for ruling machines oomto limit the travel of said actuating memprising relatively movable jaws, an actuat ber. ing member mounted to travel along thejaws Signed at Boston in the county of Suf- 10 and being provided witha threaded porfolk and State of Massachusetts, this ninth 5 tion, a rotatable nut engaging the thread to (9th) day of October, 1918.

effect the travel of the actuating member, and means carried by the threaded portion HARMON E. LINDBLADH. 

